TapeClassCompareMemory - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// minitape.h

SCSIPORT_API ULONG TapeClassCompareMemory(
  [in, out] PVOID Source1,
  [in, out] PVOID Source2,
  [in]      ULONG Length
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-minitape-tapeclasscomparememory)

TapeClassCompareMemory function

Description

The TapeClassCompareMemory routine compares two memory buffers and returns the number of bytes that are equivalent.

Parameters

Source1 [in, out]

Pointer to the first buffer to be compared.

Source2 [in, out]

Pointer to the second buffer to be compared.

Length [in]

Specifies the number of bytes to be compared.

Return value

TapeClassCompareMemory returns the number of bytes that are equivalent.

Remarks

A tape miniclass driver uses TapeClassCompareMemory to compare memory in a portable way. For example, a miniclass driver uses TapeClassCompareMemory in its TapeMiniVerifyInquiry routine to determine whether a given product ID matches one of the devices the driver supports.

See also

TapeMiniVerifyInquiry

View the official Windows Driver Kit DDI reference

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